Hi Thank you for your comment. I see. dual stack network need ipv4 and bunch of ipv6 prefix (link-local, global, temporary global..) on one network.
>> The reason for this is because you can have multiple subnets on the same >> L2 bcast domain. You can use ip aliasing in order to use multiple subnets on >> one virtual nic. For example ifconfig eth0:1 a.b.c.d/24; ifconfig eth0:2 >> d.e.f.g/24 This means, It seems like vlan tagging? Thanks! Suzuki On Tue, Aug 14, 2012 at 12:50 PM, Dan Wendlandt <d...@nicira.com> wrote: > In a dual stack deployment there may be a v4 and a v6 subnet on the same > network. > > There's also the case that a service provider has a notion of a public > network, which is represented by a UUID. After a period of time, they may > run out of IPs in one subnet, and want to assign another subnet as well, > without forcing tenants to have to start using a new identifier for the > public network. Of course, the provider would be responsible for creating > L3 connectivity between the two subnets. > > Others can chime in, but those where the two cases that I remember. > > Dan > > > On Mon, Aug 13, 2012 at 8:31 PM, Aaron Rosen <aro...@nicira.com> wrote: >> >> The reason for this is because you can have multiple subnets on the same >> L2 bcast domain. You can use ip aliasing in order to use multiple subnets on >> one virtual nic. For example ifconfig eth0:1 a.b.c.d/24; ifconfig eth0:2 >> d.e.f.g/24 >> >> Aaron >> >> >> On Mon, Aug 13, 2012 at 7:52 PM, Takaaki Suzuki <suz...@midokura.com> >> wrote: >>> >>> Hi all. >>> >>> I have one question. I prepared devstack with Qauntum V2. >>> Now I can create Subnet for Network. >>> And I can add multiple Subnet for one Network. VM can use multiple >>> subnet for one virtual NIC? >>> Why quantum v2 can create multiple subnet for one Network? >>> >>> quantum --os_token 1b73ace152c440ea939c2329fd115e56 --os_url >>> http://localhost:9696/ net-list >>> >>> +----------------+--------------------------------------+-----------+--------+--------------------------------------+----------------------------------+ >>> | admin_state_up | id | name | >>> status | subnets | tenant_id >>> | >>> >>> +----------------+--------------------------------------+-----------+--------+--------------------------------------+----------------------------------+ >>> | True | d7a8106c-7ca6-4302-a065-6a87c859ed9c | test >>> | ACTIVE | 474ea30c-9337-4f48-854c-9f572538a44c | >>> 4fb66e3355304be5a6f3340d7067b369 | >>> | | >>> | | | >>> 52ffda8c-61aa-465b-ae62-1ef57e9bed85 | >>> | >>> | | >>> | | | >>> 9a659285-c6b1-4e6f-b3f0-c3e37341e0be | >>> | >>> >>> quantum --os_token 1b73ace152c440ea939c2329fd115e56 --os_url >>> http://localhost:9696/ subnet-list >>> >>> +------------------------------------------------------+------------------+---------------+--------------------------------------+------------+--------+--------------------------------------+----------------------------------+ >>> | allocation_pools | cidr >>> | gateway_ip | id | ip_version >>> | name | network_id | tenant_id >>> | >>> >>> +------------------------------------------------------+------------------+---------------+--------------------------------------+------------+--------+--------------------------------------+----------------------------------+ >>> | {"start": "192.168.100.2", "end": "192.168.100.254"} | >>> 192.168.100.0/24 | 192.168.100.1 | >>> 474ea30c-9337-4f48-854c-9f572538a44c | 4 | test01 | >>> d7a8106c-7ca6-4302-a065-6a87c859ed9c | >>> 4fb66e3355304be5a6f3340d7067b369 | >>> | {"start": "192.168.210.2", "end": "192.168.210.254"} | >>> 192.168.210.0/24 | 192.168.210.1 | >>> 52ffda8c-61aa-465b-ae62-1ef57e9bed85 | 4 | test03 | >>> d7a8106c-7ca6-4302-a065-6a87c859ed9c | >>> 4fb66e3355304be5a6f3340d7067b369 | >>> | {"start": "192.168.200.2", "end": "192.168.200.254"} | >>> 192.168.200.0/24 | 192.168.200.1 | >>> 9a659285-c6b1-4e6f-b3f0-c3e37341e0be | 4 | test02 | >>> d7a8106c-7ca6-4302-a065-6a87c859ed9c | >>> 4fb66e3355304be5a6f3340d7067b369 | >>> >>> +------------------------------------------------------+------------------+---------------+--------------------------------------+------------+--------+--------------------------------------+----------------------------------+ >>> >>> Thanks! >>> Suzuki >>> >>> _______________________________________________ >>> Mailing list: https://launchpad.net/~openstack >>> Post to : openstack@lists.launchpad.net >>> Unsubscribe : https://launchpad.net/~openstack >>> More help : https://help.launchpad.net/ListHelp >> >> >> >> _______________________________________________ >> Mailing list: https://launchpad.net/~openstack >> Post to : openstack@lists.launchpad.net >> Unsubscribe : https://launchpad.net/~openstack >> More help : https://help.launchpad.net/ListHelp >> > > > > -- > ~~~~~~~~~~~~~~~~~~~~~~~~~~~ > Dan Wendlandt > Nicira, Inc: www.nicira.com > twitter: danwendlandt > ~~~~~~~~~~~~~~~~~~~~~~~~~~~ > _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp